a new alkaloid (1) and two known compounds (2 and 3) were isolated from the blue-greenalga arthrospira platensis. their structures were determined on the basis of spectroscopic data.according to the obtained data and values in the literature, the compounds were concluded to beeckol.

Book details Contemporary Computer-Assisted Approaches to Molecular Structure Elucidation (New Developments in NMR) by Mikhail E Elyashberg, Antony Williams and Kirill Blinov. Edited by William Price. RSC Publishing, 2012. ISBN: 978-1-84973-432-5; eISBN: 978-1-84973457-8. Computer-assisted structure elucidation (CASE) aims to provide users in chemistry, molecular biology, or other areas dealing...

1 Advanced Chemistry Development, Moscow Department, 6 Akademik Bakulev St., Moscow 117513, Russia 2 Advanced Chemistry Development Inc., 90 Adelaide Street, Suite 702, Toronto, Ontario, Canada, M5H 3V9 3 Rapid Structure Characterization Group, Global Pharmaceutical Sciences, Pharmacia Corporation, 7000 Portage Road, Kalamazoo, Michigan 49001-0199, USA 4 Novosibirsk Institute of Organic Chemist...

selective transformation of 2-propargylthio-6-methyl-pyrimidin-4(1h)on e (2) to 3,5-dimethyl-7h-thiazolo [3,2-a] pyrimidin-7-one (3) is performed under the conditionof base catalysis . for elucidation of structure, palladium catalyzed cyclization reaction of (2) was carried out and the structures of the products were assigned (5) and (6). these compounds underwent isomerization to (3) and (4) r...

In the course of our continuing search for novel antimicrobial agents,1-4) we have isolated a novel diketopiperazine, Sch 725418 (1), from culture Micromonospora sp. In this paper, we describe the isolation and structure elucidation of 1 using high resolution ESI-MS and extensive NMR spectroscopic analysis. Fermentation studies of the SP culture 94-00889 were carried out in shake flasks. Stock ...

mycelium and aerial hyphae. Spiral spore chains of 10 to 30 or more spores were observed at the tips of aerial hyphae on the various ISP agar media. Fragmentation of substrate mycelium, sclerotium and sporangia-like vesicles was not observed. The cultural characteristics of strain A-230 on various agar media are summarized in Table 1. The physiological properties and the utilization of carbohyd...